ANT的使用
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ANT的使用
最好的学习过程就是看懂那些open source项目中的build.xml脚本,然后根据自己的需要简化成一个更简单的,ANT和APACHE上很多非常工程派的项目:简单易用,而且适应性非常强,因为这些项目的建立往往来源于开发人员日常最直接的需求。
以下是的一个WebLucene应用的例子:修改自JDOM的build.xml:
<project default="usage" basedir=".">
<!-- =================================================================== -->
<!-- Initialization target -->
<!-- =================================================================== -->
<target name="init">
<tstamp/>
<property file="${basedir}/build.properties" />
<property name="Name" value="ProjectFullName"/>
<property name="name" value="project_name"/>
<property name="version" value="0.2"/>
<property name="year" value="2003"/>
<echo message="----------- ${Name} ${version} [${year}] ------------"/>
<property name="debug" value="off"/>
<property name="optimize" value="on"/>
<property name="deprecation" value="on"/>
<property name="src.dir" value="./src/WEB-INF/src"/>
<property name="lib.dir" value="./src/WEB-INF/lib"/>
<property name="packages" value="com.chedong.*,org.apache.lucene.*"/>
<property name="build.src" value="./src/WEB-INF/build"/>
<property name="build.dest" value="./src/WEB-INF/classes"/>
<property name="build.javadocs" value="./src/doc"/>
<path id="classpath">
<pathelement path="${jsdk_jar}"/>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
<filter token="year" value="${year}"/>
<filter token="version" value="${version}"/>
<filter token="date" value="${TODAY}"/>
<filter token="log" value="true"/>
<filter token="verbose" value="true"/>
</target>
<!-- =================================================================== -->
<!-- Help on usage -->
<!-- =================================================================== -->
<target name="usage" depends="init">
<echo message="${Name} Build file"/>
<echo message="-------------------------------------------------------------"/>
<echo message=""/>
<echo message=" available targets are:"/>
<echo message=""/>
<echo message=" jar --> generates the ${name}.jar file"/>
<echo message=" build --> compiles the source code"/>
<echo message=" javadoc --> generates the API documentation"/>
<echo message=" clean --> cleans up the directory"/>
<echo message=""/>
<echo message=" Please rename build.properties.default to build.properties"/>
<echo message=" and edit build.properties to specify JSDK 2.3 classpath."/>
<echo message=""/>
<echo message=" See the comments inside the build.xml file for more details."/>
<echo message="-------------------------------------------------------------"/>
<echo message=""/>
<echo message=""/>
</target>
<!-- =================================================================== -->
<!-- Prepares the source code -->
<!-- =================================================================== -->
<target name="prepare-src" depends="init">
<!-- create directories -->
<mkdir dir="${build.src}"/>
<mkdir dir="${build.dest}"/>
<!-- copy src files -->
<copy todir="${build.src}">
<fileset dir="${src.dir}"/>
</copy>
</target>
<!-- =================================================================== -->
<!-- Compiles the source directory -->
<!-- =================================================================== -->
<target name="build" depends="prepare-src">
<javac srcdir="${build.src}"
destdir="${build.dest}"
debug="${debug}"
optimize="${optimize}">
<classpath refid="classpath"/>
</javac>
</target>
<!-- =================================================================== -->
<!-- Creates the class package -->
<!-- =================================================================== -->
<target name="jar" depends="build">
<jar jarfile="${lib.dir}/${name}.jar"
basedir="${build.dest}"
includes="**"/>
</target>
<!-- =================================================================== -->
<!-- Creates the API documentation -->
<!-- =================================================================== -->
<target name="javadoc" depends="build">
<mkdir dir="${build.javadocs}"/>
<javadoc packagenames="${packages}"
sourcepath="${build.src}"
destdir="${build.javadocs}"
author="true"
version="true"
use="true"
splitindex="true"
windowtitle="${Name} API"
doctitle="${Name}">
<classpath refid="classpath"/>
</javadoc>
</target>
<!-- =================================================================== -->
<!-- Clean targets -->
<!-- =================================================================== -->
<target name="clean" depends="init">
<delete dir="${build.src}"/>
<delete dir="${build.dest}/org"/>
<delete dir="${build.dest}/com"/>
<delete>
<fileset dir="${build.dest}" includes="**/*.class"/>
</delete>
</target>
</project>
<!-- End of file -->
缺省任务:usage 打印帮助文档,告诉有那些任务选项:可用的有build, jar, javadoc和clean.
初始化环境变量:init
所有任务都基于一些基本环境变量的设置初始化完成,是后续其他任务的基础,在环境初始化过程中,有2点比较可以方便设置:
1 除了使用却缺省的property设置了JAVA源路径和输出路径外,引用了一个外部的build.properties文件中的设置,
<property file="${basedir}/build.properties" />
这样大部分简单配置用户只要会看懂build.properties就可以了,毕竟XML比起key value的属性文件还是要可读性差一些。用build.properties也可以方便其他用户从编译的细节中解放出来。
2 CLASSPATH设置:使用了其中的:
<path id="classpath">
<pathelement path="${jsdk_jar}"/>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
则相当于设置了:CLASSPATH=/path/to/resin/lib/jsdk23.jar; /path/to/project/lib/*.jar;
文件复制:prepare-src
创建临时SRC存放目录和输出目录。
<!-- =================================================================== -->
<!-- Prepares the source code -->
<!-- =================================================================== -->
<target name="prepare-src" depends="init">
<!-- create directories -->
<mkdir dir="${build.src}"/>
<mkdir dir="${build.dest}"/>
<!-- copy src files -->
<copy todir="${build.src}">
<fileset dir="${src.dir}"/>
</copy>
</target>
编译任务:build
编译时的CLASSPATH环境通过一下方式找到引用一个path对象
<classpath refid="classpath"/>
打包任务:jar
对应用打包生成项目所写名的.jar文件
<!-- =================================================================== -->
<!-- Creates the class package -->
<!-- =================================================================== -->
<target name="jar" depends="build">
<jar jarfile="${lib.dir}/${name}.jar"
basedir="${build.dest}"
includes="**"/>
</target>
生成JAVADOC文档任务: javadoc
<!-- =================================================================== -->
<!-- Creates the API documentation -->
<!-- =================================================================== -->
<target name="javadoc" depends="build">
<mkdir dir="${build.javadocs}"/>
<javadoc packagenames="${packages}"
sourcepath="${build.src}"
destdir="${build.javadocs}"
author="true"
version="true"
use="true"
splitindex="true"
windowtitle="${Name} API"
doctitle="${Name}">
<classpath refid="classpath"/>
</javadoc>
</target>
清空临时编译文件:clean
<!-- =================================================================== -->
<!-- Clean targets -->
<!-- =================================================================== -->
<target name="clean" depends="init">
<delete dir="${build.src}"/>
<delete dir="${build.dest}/org"/>
<delete dir="${build.dest}/com"/>
<delete>
<fileset dir="${build.dest}" includes="**/*.class"/>
</delete>
</target>
TODO:
更多任务/扩展:(样例)
以下是的一个WebLucene应用的例子:修改自JDOM的build.xml:
<project default="usage" basedir=".">
<!-- =================================================================== -->
<!-- Initialization target -->
<!-- =================================================================== -->
<target name="init">
<tstamp/>
<property file="${basedir}/build.properties" />
<property name="Name" value="ProjectFullName"/>
<property name="name" value="project_name"/>
<property name="version" value="0.2"/>
<property name="year" value="2003"/>
<echo message="----------- ${Name} ${version} [${year}] ------------"/>
<property name="debug" value="off"/>
<property name="optimize" value="on"/>
<property name="deprecation" value="on"/>
<property name="src.dir" value="./src/WEB-INF/src"/>
<property name="lib.dir" value="./src/WEB-INF/lib"/>
<property name="packages" value="com.chedong.*,org.apache.lucene.*"/>
<property name="build.src" value="./src/WEB-INF/build"/>
<property name="build.dest" value="./src/WEB-INF/classes"/>
<property name="build.javadocs" value="./src/doc"/>
<path id="classpath">
<pathelement path="${jsdk_jar}"/>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
<filter token="year" value="${year}"/>
<filter token="version" value="${version}"/>
<filter token="date" value="${TODAY}"/>
<filter token="log" value="true"/>
<filter token="verbose" value="true"/>
</target>
<!-- =================================================================== -->
<!-- Help on usage -->
<!-- =================================================================== -->
<target name="usage" depends="init">
<echo message="${Name} Build file"/>
<echo message="-------------------------------------------------------------"/>
<echo message=""/>
<echo message=" available targets are:"/>
<echo message=""/>
<echo message=" jar --> generates the ${name}.jar file"/>
<echo message=" build --> compiles the source code"/>
<echo message=" javadoc --> generates the API documentation"/>
<echo message=" clean --> cleans up the directory"/>
<echo message=""/>
<echo message=" Please rename build.properties.default to build.properties"/>
<echo message=" and edit build.properties to specify JSDK 2.3 classpath."/>
<echo message=""/>
<echo message=" See the comments inside the build.xml file for more details."/>
<echo message="-------------------------------------------------------------"/>
<echo message=""/>
<echo message=""/>
</target>
<!-- =================================================================== -->
<!-- Prepares the source code -->
<!-- =================================================================== -->
<target name="prepare-src" depends="init">
<!-- create directories -->
<mkdir dir="${build.src}"/>
<mkdir dir="${build.dest}"/>
<!-- copy src files -->
<copy todir="${build.src}">
<fileset dir="${src.dir}"/>
</copy>
</target>
<!-- =================================================================== -->
<!-- Compiles the source directory -->
<!-- =================================================================== -->
<target name="build" depends="prepare-src">
<javac srcdir="${build.src}"
destdir="${build.dest}"
debug="${debug}"
optimize="${optimize}">
<classpath refid="classpath"/>
</javac>
</target>
<!-- =================================================================== -->
<!-- Creates the class package -->
<!-- =================================================================== -->
<target name="jar" depends="build">
<jar jarfile="${lib.dir}/${name}.jar"
basedir="${build.dest}"
includes="**"/>
</target>
<!-- =================================================================== -->
<!-- Creates the API documentation -->
<!-- =================================================================== -->
<target name="javadoc" depends="build">
<mkdir dir="${build.javadocs}"/>
<javadoc packagenames="${packages}"
sourcepath="${build.src}"
destdir="${build.javadocs}"
author="true"
version="true"
use="true"
splitindex="true"
windowtitle="${Name} API"
doctitle="${Name}">
<classpath refid="classpath"/>
</javadoc>
</target>
<!-- =================================================================== -->
<!-- Clean targets -->
<!-- =================================================================== -->
<target name="clean" depends="init">
<delete dir="${build.src}"/>
<delete dir="${build.dest}/org"/>
<delete dir="${build.dest}/com"/>
<delete>
<fileset dir="${build.dest}" includes="**/*.class"/>
</delete>
</target>
</project>
<!-- End of file -->
缺省任务:usage 打印帮助文档,告诉有那些任务选项:可用的有build, jar, javadoc和clean.
初始化环境变量:init
所有任务都基于一些基本环境变量的设置初始化完成,是后续其他任务的基础,在环境初始化过程中,有2点比较可以方便设置:
1 除了使用却缺省的property设置了JAVA源路径和输出路径外,引用了一个外部的build.properties文件中的设置,
<property file="${basedir}/build.properties" />
这样大部分简单配置用户只要会看懂build.properties就可以了,毕竟XML比起key value的属性文件还是要可读性差一些。用build.properties也可以方便其他用户从编译的细节中解放出来。
2 CLASSPATH设置:使用了其中的:
<path id="classpath">
<pathelement path="${jsdk_jar}"/>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
则相当于设置了:CLASSPATH=/path/to/resin/lib/jsdk23.jar; /path/to/project/lib/*.jar;
文件复制:prepare-src
创建临时SRC存放目录和输出目录。
<!-- =================================================================== -->
<!-- Prepares the source code -->
<!-- =================================================================== -->
<target name="prepare-src" depends="init">
<!-- create directories -->
<mkdir dir="${build.src}"/>
<mkdir dir="${build.dest}"/>
<!-- copy src files -->
<copy todir="${build.src}">
<fileset dir="${src.dir}"/>
</copy>
</target>
编译任务:build
编译时的CLASSPATH环境通过一下方式找到引用一个path对象
<classpath refid="classpath"/>
打包任务:jar
对应用打包生成项目所写名的.jar文件
<!-- =================================================================== -->
<!-- Creates the class package -->
<!-- =================================================================== -->
<target name="jar" depends="build">
<jar jarfile="${lib.dir}/${name}.jar"
basedir="${build.dest}"
includes="**"/>
</target>
生成JAVADOC文档任务: javadoc
<!-- =================================================================== -->
<!-- Creates the API documentation -->
<!-- =================================================================== -->
<target name="javadoc" depends="build">
<mkdir dir="${build.javadocs}"/>
<javadoc packagenames="${packages}"
sourcepath="${build.src}"
destdir="${build.javadocs}"
author="true"
version="true"
use="true"
splitindex="true"
windowtitle="${Name} API"
doctitle="${Name}">
<classpath refid="classpath"/>
</javadoc>
</target>
清空临时编译文件:clean
<!-- =================================================================== -->
<!-- Clean targets -->
<!-- =================================================================== -->
<target name="clean" depends="init">
<delete dir="${build.src}"/>
<delete dir="${build.dest}/org"/>
<delete dir="${build.dest}/com"/>
<delete>
<fileset dir="${build.dest}" includes="**/*.class"/>
</delete>
</target>
TODO:
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